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Finding the Third Proportional to 817,458.75 and 1,275,852.75

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Solution

The third proportional to 817,458.75 and 1,275,852.75 is: 1,991,293.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,458.75 : 1,275,852.75 = 1,275,852.75 : x
  2. Step 2: Convert to fraction form
    817,458.75/1,275,852.75 = 1,275,852.75/x
  3. Step 3: Cross multiply
    817,458.75x = 1,275,852.75 × 1,275,852.75
  4. Step 4: Simplify right side
    817,458.75x = 1,627,800,239,682.56
  5. Step 5: Solve for x
    x = 1,627,800,239,682.56/817,458.75
  6. Step 6: Final answer
    x = 1,991,293.43

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.